Only 2 years with many, many experiments about the embeddings methods ....It was my dreamed set-up in the sense that this is very good sound, one of the best I have heard....But my experience is limited for sure....It is my dream comes true because with low cost electronic components but very good one, vintage or used , I myself create all the controls means to embed them mechanically, electrically and acoustically in an optimal way with only homemade materials or low cost one... The result is astonishing because the ratio price/S.Q is over the roof....( I own a Sansui AU 7700, 200 bucks with new catalytics and a pair of Mission Cyrus 781 ,50 bucks)
To upgrade it with only new speakers and a new amplifier that crush what I already have it will cost me 12,000 thousand (Harbeth+Zotl amplifier)without upgrading the dac that is too good to be true when rightfully embedded (24 dollars on a bet on Ebay miraculously winning) Starting POINT System NOS dac….
I can die with what I listen to right now....The upgrading would be an upgrading but when the music is already there we can live without frustration to upgrade....
The 2 years experiments teach me that heaven is in our own hands and the cost is peanuts …. The Hi-Fi high cost is mostly a marketing myth or an engineering research that we must pay for ....The 3 embeddings with low cost methods is the key of Audio.....
P.S. Before these 2 years of continuous experiments, there is 5 years when I looked for and tried frantically different, speakers, amplifier, dac and headphones....I read and put my faith in the reviewers... That was a mistake....I learned the hard way.... When I decided to takes all that in my hand and forgot about upgrading, I discovered , one by one the secrets of the 3 embeddings....And the same pieces of gear that I was willing to upgrade because I was never satisfied with in the first place transmuted themselves in pure diamond unrecognizable.... Then I discovered that most people really dont even know that the gear they already owns is able to gives in potential S.Q.....They upgrade before even knowing what they afford to buy in the first place.... :)
They dont know the first and sixth law of audio : " dont upgrade before embedding it "
" Dont upgrade before embedding rightfully all of them"